IC GS Introduction to the Informatics and Data

IC GS Introduction to the Informatics and Data Aspects John Broome (Canada) J. Broome, Mar. 2007

Contents 1. 2. 3. 4. 5. 6. Requirements analysis Geological map data Standards/Technology Architectures What are the challenges? Summary

What is One. Geology? A project to make web-accessible the best available geological map data worldwide at a scale of about 1: 1 million, as a Geological Survey contribution to the International Year of Planet Earth

Contents 1. 2. 3. 4. 5. 6. Requirements analysis Geological map data Standards/Technology Architectures What are the challenges? Summary

Requirements Analysis #1 What are the technical requirements of One. Geology? 1. Receive and integrate diverse geological coverages. 2. Manage digital map data and metadata 3. Deliver meaningful and consistent geological map data online.

Requirements Analysis #1 What are the technical requirements of One. Geology? 1. Access and integrate diverse geological coverages. 2. Manage digital map data and metadata 3. Deliver meaningful and consistent geological map data online.

Requirements Analysis #2 What are other requirements of One. Geology? 1. Accommodate participants with differing technical capabilities and resources. 2. Transfer technology and standards know-how. 3. Be sustainable for the future.

Contents 1. 2. 3. 4. 5. 6. Requirements analysis Geological map data Standards/Technology Architectures What are the challenges? Summary

Geological Map Data How will the data delivered by One. Geology be organized and formatted ? 1. Image format : • Raster images • paper map scans 2. Vector Format: • Geological units : polygons & attributes • Faults : vectors/lines & attributes • locations : points & attributes

Workshop Consultation Results What data/maps do workshop participants have ? Only paper maps available 11% Raster data available 52% Vector data available 72% Fees charged for maps/data 25% Vector data available online 28% Raster data available online 35% (accuracy +/- 15%)

Workshop Consultation Results What data/maps do workshop participants have ? Only paper maps available Raster data available 11% 52% Vector data available 72% Fees charged for maps/data 25% Vector data available online 28% Raster data available online 35% (accuracy +/- 15%)

Workshop Consultation Results What data/maps do workshop participants have ? Only paper maps available 11% Raster data available 52% Vector data available 72% Fees charged for maps/data 25% Vector data available online 28% Raster data available online 35% (accuracy +/- 15%)

Contents 1. 2. 3. 4. 5. 6. Requirements analysis Geological map data Standards/Technology Architectures What are the challenges? Summary S

Standards/Technology Formats, models, systems, projections, hardware, software, etc. . . ? 1. The technology is available. standard-based, open vs. commercial 2. Standards are essential for understanding & interoperability 1. Geoscience standards: Age? , Lithology? , Stratigraphy? 2. Data model < = > Conceptual Geology model 3. Exchange Formats: OGC, GML, Geo. Sci. ML? 4. Online access: WMS, WFS, WCS, etc. 5. Terminology : multiple languages?

“Schematic interoperability” means: Data in a common data format and structure without harmonizing the content and interpretation between territories. • This approach avoids the requirement to agree upon a single interpretation and legend and will allow delivery of geological coverage for any area of the world. • However: One. Geology will likely contain national "boundary faults" caused by data not being harmonized.

Contents 1. 2. 3. 4. 5. 6. Requirements analysis Geological map data Standards/Technology Architectures What are the challenges? Summary

Architectures Where will the data flow from the source to the user and how will it be managed ? Some Options : a) Distributed model b) Centralized model c) Hybrid model

Architecture Models: 3 parts One. Geology Data Delivery One. Geology Portal Geology Coverage Data Sources

Links and Translation S One. Geology Data Access S One. Geology Portal Geology Coverage Data Sources = standard One. Geology online data transfer/access

Access to participant data/maps Translation S One. Geology Data Access One. Geology Portal Geology Coverage Data Sources

Access to Participant Data/Maps How nations provide One. Geology with access to their data will depend on the Architecture model selected. Options: Translati on (1) One. Geology Data Access S (2) One. Geology Data Management a) Scan of paper map b) Raster map c) Vector map file (ESRI, Intergraph, etc. ) d) Geo. Sci. ML file e) Online map service (WMS, WFS, etc. ) f ) ? ? ? ? (3) Geology Coverage Data Sources

Data Delivery to Users Translation S One. Geology Data Access One. Geology Portal Geology Coverage Data Sources

Data Delivery to Users How will One. Geology deliver geological information to the world? Translati on S One. Geology Data Access One. Geology Data Management Geology Coverage Data Sources Options: 1. A searchable on-line catalogue of geology maps/data with links to data/images? 2. Downloadable/viewable images of geology ? 3. Downloadable/viewable geology vector files ? 4. Web data services (WMS, WFS) using a standard format/structure ? (Geo. Sci. ML? )

a) Distributed Architecture Model Participants manage their data locally and make it accessible online for delivery through the One. Geology Web Server WEB SERVER USER S S WEB SERVER S S S WEB SERVER

b) Centralized Architecture Model Participants submit their data for loading into a One. Geology Database which delivers it online through the One. Geology Web Server. 1 G DATABASE USER S S deli very

c) Hybrid Architecture Model Data are managed either locally or in the One. Geology Database for delivery via the One. Geology Web Site. 1 G DATABASE S USER S de liv ery WEB SERVER

Contents 1. 2. 3. 4. 5. 6. Requirements analysis Geological map data Standards/Technology Architectures What are the challenges? Summary

7) What are the technical challenges? What challenges must One. Geology address ? 1. Participants with a wide range of know-how and resources. 2. Integration of maps/data with very different format, content, and structure. 3. Delivering geological information that can be understood by non-specialists from highly technical data. 4. Establishment of dependable systems that deliver One. Geology data in real time.

Contents 1. 2. 3. 4. 5. 6. Requirements analysis Geological map data Standards/Technology Architectures What are the challenges? Summary

Summary Key points to remember ? The proposed One. Geology technical approach will: • • • Accommodate the needs of all participants. Deliver structurally-consistent geological data online. NOT require scientific harmonization of geology. Place importance on the transfer of technology. Allow participants to provide access to their data in whatever form they have. • Technology is available to meet One. Geology requirements.